CN101881975B - Double-optical-wedge laser beam angle automatic controller - Google Patents
Double-optical-wedge laser beam angle automatic controller Download PDFInfo
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- CN101881975B CN101881975B CN2010102077298A CN201010207729A CN101881975B CN 101881975 B CN101881975 B CN 101881975B CN 2010102077298 A CN2010102077298 A CN 2010102077298A CN 201010207729 A CN201010207729 A CN 201010207729A CN 101881975 B CN101881975 B CN 101881975B
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Abstract
The invention relates to a double-optical-wedge laser beam angle automatic controller, in particular to a high-accuracy double-optical-wedge laser beam angle automatic controller which is a light beam adjusting device applied to a laser actual troop confrontation system. The double-optical-wedge laser beam angle automatic controller has the function of rapidly and accurately adjusting the angle of emitted laser along the two-dimensional direction for achieving the aim of accurate aiming, and consists of a laser emission part, an optical wedge adjusting part and a control circuit, wherein the laser emission part comprises a laser source, a convex lens and a laser transmitter lens cylinder; the optical wedge adjusting part comprises a stepping motor I, a stepping motor II, an optical wedge gear I, an optical wedge gear II, a first-level coded disc I, a first-level coded disc II, a second-level coded disc I, a second-level coded disc II, a first-level optical coupler I, a first-level optical coupler II, an optical wedge lens I, an optical wedge lens II, an optical wedge gear base, a small gear I and a small gear II; and the control circuit comprises a serial port communication circuit, a master control circuit, a four-way feedback circuit, a modulation circuit and a motor control driving circuit.
Description
Technical field
Double-optical-wedge laser beam angle automatic controller of the present invention relates to a kind of high precision double optical-wedge laser beam angle automatic controller device; Particularly a kind of light beam adjusting gear that is applied in the laser armed forces in real combat countermeasure system, its function are regulated the angle of shoot laser fast and accurately to reach the purpose of accurate aiming on two-dimensional directional.
Background technology
Two wedges have a wide range of applications in optical delivery system.Wedge combination through the different structure parameter can obtain different beam deflection angles; In the optical delivery process; Sometimes need be implemented in certain field angle scope inner light beam deflection; And realize accurate outgoing spot location, as in laser armed forces in real combat countermeasure system, need laser transmitter hot spot and sighting system aiming point inregister.This just need realize through precision mechanical system and circuit control system, and present laser transmitter and control instrument can't be realized.
Summary of the invention
The objective of the invention is to provides a kind of double-optical-wedge laser beam angle automatic controller to above-mentioned weak point, is the automatic calibration instrument of laser beam angle of a kind of simple in structure, high precision, high reliability.
Double-optical-wedge laser beam angle automatic controller of the present invention is to take following technical scheme to realize:
Double-optical-wedge laser beam angle automatic controller is made up of laser emission part, wedge adjusting parts, control circuit.Laser emission part comprises lasing light emitter, convex lens and laser transmitter lens barrel, and lasing light emitter and convex lens are installed in the Laser emission lens barrel, and the light that lasing light emitter is produced pools directional light through convex lens.Said lasing light emitter adopts semiconductor laser.Wedge is regulated parts and is comprised stepper motor one, stepper motor two, wedge gear one, wedge gear two, one-level code-disc one, one-level code-disc two, secondary code-disc I and II code-disc two, one-level optocoupler one, one-level optocoupler two, two aurora coupling I and II optocouplers two, wedge eyeglass one, wedge eyeglass two, wedge gear pedestal, pinion wheel one and pinion wheel two.
Wedge is regulated in the parts: wedge eyeglass one is glued at wedge gear one central part, and wedge gear one is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; On wedge gear one end face one-level code-disc one is installed, rotates start bit to confirm wedge through one-level optocoupler one feedback signal; Pinion wheel one and one engagement of wedge gear; Simultaneously with stepper motor I and II code-disc one coaxial being assembled together; Stepper motor one drives pinion wheel one rotation, drives the wedge gear for the moment simultaneously; Secondary code-disc one is through secondary optocoupler one feedback signal, with the concrete angle of record wedge eyeglass one rotation.
Wedge eyeglass two is glued at wedge gear two central parts, and wedge gear two is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; On the wedge gear biend one-level code-disc two is installed, rotates start bit to confirm wedge through one-level optocoupler two feedback signals; Pinion wheel two and two engagements of wedge gear; Simultaneously with stepper motor two, secondary code-disc two coaxial being assembled together; Stepper motor two drives pinion wheels two rotations, when driving wedge gear two simultaneously; Secondary code-disc two is through secondary optocoupler two feedback signals, with the concrete angle of record wedge eyeglass two rotations.
Laser emission part pools directional light with the light that lasing light emitter produces through collimation lens.Wedge is regulated in the parts: the wedge eyeglass is glued at wedge gear centre portion, and the wedge gear is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; The one-level code-disc is installed on the wedge gear face, rotates start bit to confirm wedge through one-level optocoupler feedback signal; Pinion wheel and wedge gearing mesh; Simultaneously with stepper motor, the secondary code-disc is coaxial is assembled together; Stepper motor drives the pinion wheel rotation, when driving the wedge gear simultaneously, the secondary code-disc is through secondary optocoupler feedback signal, with the concrete angle of record wedge eyeglass rotation.
Control circuit comprises serial communication circuit, governor circuit, 4 road feedback circuits, modulation circuit, Electric Machine Control driving circuit.Governor circuit is connected with serial communication circuit, 4 road feedback circuits, modulation circuit; Modulation circuit is connected with the Electric Machine Control driving circuit; The transmission and the feedback that are used for signal; Modulation circuit adopts the SP3232E receiver, and SP3232E needs the source current of 1uA just can realize the monitoring to external signal following of shutdown mode; Governor circuit selects for use the Cortex-M3 processor of ST company as kernel control chip; For modulation circuit provides drive signal; 4 road feedback circuits link to each other with one-level optocoupler one, one-level optocoupler two, two aurora coupling I and II optocouplers two respectively; Through accepting the optocoupler signal, prevent that the motor adjusting from going beyond the scope; Modulation circuit links to each other with circuit for controlling motor, realizes that through PWM motor slowly quickens, at the uniform velocity controls, slowing down stops; Circuit for controlling motor links to each other with stepper motor one, stepper motor two respectively, and the Electric Machine Control driving circuit adopts the L298N chip for driving, and every road control signal all has overcurrent protection function.
Principle of work: during double-optical-wedge laser beam angle automatic controller work, serial communication circuit obtains trajectory adjustment instruction in the control circuit, and governor circuit is according to the direction and the step number of model trajectory and the running of wedge travelling mechanism property calculation motor needs; The speed and the moment of the operation of modulation circuit control motor realize clicking speed Control, reduce the step-out probability, and the feedback circuit control gear carries out fine adjustments, finally realizes the accurate simulation of trajectory.
During double-optical-wedge laser beam angle automatic controller work, laser emission part pools directional light with the light that lasing light emitter produces through convex lens.Wedge is regulated in the parts: the wedge eyeglass is glued at wedge gear centre portion, and the wedge gear is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; The one-level code-disc is installed on the wedge gear face, rotates start bit to confirm wedge through one-level optocoupler feedback signal; Pinion wheel and wedge gearing mesh; Simultaneously with stepper motor, the secondary code-disc is coaxial is assembled together; Stepper motor drives the pinion wheel rotation, when driving the wedge gear simultaneously, the secondary code-disc is through secondary optocoupler feedback signal, with the concrete angle of record wedge eyeglass rotation.
Serial communication circuit obtains trajectory adjustment instruction in the control circuit, and governor circuit is according to the direction and the step number of model trajectory and the running of wedge travelling mechanism property calculation motor needs; The speed and the moment of the operation of modulation circuit control motor realize clicking speed Control, reduce the step-out probability, and the feedback circuit control gear carries out fine adjustments, finally realizes the accurate simulation of trajectory.
The present invention's technology beneficial effect:
1, the governor motion of double-optical-wedge laser beam angle automatic controller is based on two wedge principles, and two circular light are fixed on the wedge gear.Two control step motors are fixed on the base plate, drive the rotation of wedge gear through precision gear, and the physical construction precision is high, steadily do not have shake during work.
2, on the wedge gear pedestal of double-optical-wedge laser beam angle automatic controller light lotus root and code-disc are set, can feed back rotational angle in real time during work, improved the control accuracy of total system.
3, double-optical-wedge laser beam angle automatic controller is the automatic calibration instrument of laser beam angle of a kind of simple in structure, high precision, high reliability.
Description of drawings
Below will combine accompanying drawing that the present invention is described further:
Fig. 1 is a double-optical-wedge laser beam angle automatic controller front view of the present invention.
Fig. 2 is that double-optical-wedge laser beam angle automatic controller A of the present invention is to view.
Fig. 3 is the control circuit block diagram of double-optical-wedge laser beam angle automatic controller of the present invention.
Label among the figure: 1, base plate, 2, stepper motor two, 3, stepper motor one, 4, two aurora couplings one, 5, two utmost point code-discs one; 6, secondary optocoupler two, 7, secondary code-disc two, 8, wedge eyeglass two, 9, wedge eyeglass one, 10, one-level optocoupler two; 11, one-level code-disc two, 12, wedge gear two, 13, wedge gear pedestal, 14, wedge; 15, wedge gear one, 16, one-level optocoupler one, 17, one-level code-disc one, 18, Laser emission lens barrel; 19, convex lens, 20, lasing light emitter, 21, pinion wheel one, 22, pinion wheel two.
Embodiment
With reference to accompanying drawing 1～3, double-optical-wedge laser beam angle automatic controller is made up of laser emission part, wedge adjusting parts, control circuit.Laser emission part comprises lasing light emitter, convex lens and Laser emission lens barrel 18, and lasing light emitter 20 is installed in the Laser emission lens barrel 18 with convex lens 19, and the light that lasing light emitter 20 is produced pools directional light through convex lens 19.Said lasing light emitter 20 adopts semiconductor laser.Wedge is regulated parts and is comprised stepper motor 1, stepper motor 22, wedge gear 1, wedge gear 2 12, one-level code-disc 1, one-level code-disc 2 11, secondary code-disc 1, secondary code-disc 27, one-level optocoupler 1, one-level optocoupler 2 10, two aurora couplings 1, secondary optocoupler 26, wedge eyeglass 1, wedge eyeglass 28, wedge gear pedestal 13, pinion wheel 1 and pinion wheel 2 22.
Wedge is regulated in the parts: wedge eyeglass 1 is glued at wedge gear one 15 central parts, and wedge gear 1 is installed in the wedge gear pedestal 13, can rotate around the center, limits its axial location by wedge 14; On wedge gear one 15 end faces one-level code-disc 1 is installed, rotates start bit to confirm wedge through one-level optocoupler one 16 feedback signals; Pinion wheel 1 and one 15 engagements of wedge gear; Simultaneously with stepper motor 1, secondary code-disc one 5 coaxial being assembled together; Stepper motor 1 drives pinion wheel one 21 rotations, drove the wedge gear at one 10 o'clock simultaneously; Secondary code-disc 1 is through secondary optocoupler one 4 feedback signals, with the concrete angle of record wedge eyeglass one 9 rotations.
Wedge eyeglass 28 is glued at wedge gear 2 12 central parts, and wedge gear 2 12 is installed in the wedge gear pedestal 13, can rotate around the center, limits its axial location by wedge 14; On wedge gear 2 12 end faces one-level code-disc 2 11 is installed, rotates start bit to confirm wedge through one-level optocoupler 26 feedback signals; Pinion wheel 2 22 and 2 12 engagements of wedge gear; Simultaneously with stepper motor 22, secondary code-disc 27 coaxial being assembled together; Stepper motor 22 drives pinion wheel 2 22 rotations, drove the wedge gear at 2 12 o'clock simultaneously; Secondary code-disc 27 is through secondary optocoupler 26 feedback signals, with the concrete angle of record wedge eyeglass 28 rotations.
Said wedge eyeglass 1 is 2 ° with wedge eyeglass 28 angles of wedge, and material adopts K9 glass.
Laser emission part pools directional light with the light that lasing light emitter 20 produces through convex lens 19.Wedge is regulated in the parts: the wedge eyeglass is glued at wedge gear centre portion, and the wedge gear is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; The one-level code-disc is installed on the wedge gear face, rotates start bit to confirm wedge through one-level optocoupler feedback signal; Pinion wheel and wedge gearing mesh; Simultaneously with stepper motor, the secondary code-disc is coaxial is assembled together; Stepper motor drives the pinion wheel rotation, when driving the wedge gear simultaneously, the secondary code-disc is through secondary optocoupler feedback signal, with the concrete angle of record wedge eyeglass rotation.
Control circuit comprises serial communication circuit, governor circuit, 4 road feedback circuits, modulation circuit, Electric Machine Control driving circuit.Governor circuit is connected with serial communication circuit, 4 road feedback circuits, modulation circuit; Modulation circuit is connected with the Electric Machine Control driving circuit; The transmission and the feedback that are used for signal; Modulation circuit adopts the SP3232E receiver, and SP3232E needs the source current of 1uA just can realize the monitoring to external signal following of shutdown mode; Governor circuit selects for use the Cortex-M3 processor of ST company as kernel control chip; For modulation circuit provides drive signal; 4 road feedback circuits link to each other with one-level optocoupler 1, one-level optocoupler 2 10, two aurora couplings 1, secondary optocoupler 26 respectively; Through accepting the optocoupler signal, prevent that the motor adjusting from going beyond the scope; Modulation circuit links to each other with circuit for controlling motor, realizes that through PWM motor slowly quickens, at the uniform velocity controls, slowing down stops; Circuit for controlling motor links to each other with stepper motor 1, stepper motor 22 respectively, and the Electric Machine Control driving circuit adopts the L298N chip for driving, and every road control signal all has overcurrent protection.
Said stepper motor 1, stepper motor 22 and wedge gear pedestal 13 are installed in respectively on the base plate 1, and one-level optocoupler 1, one-level optocoupler 2 10, secondary optocoupler 1, secondary optocoupler 26 are fixed on the base plate 1 through support respectively.
Measured result of the present invention shows: it is 1.8 ° that the drive stepping motor of double-optical-wedge laser beam angle automatic controller of the present invention is rotated step-length; The reduction gear ratio of reducing gear is not less than 6; System can the angle to shoot laser regulate in the 35mrad scope, and degree of regulation is less than 0.2mrad.
Claims (6)
1. a double-optical-wedge laser beam angle automatic controller is characterized in that being made up of laser emission part, wedge adjusting parts, control circuit; Laser emission part comprises lasing light emitter, convex lens and laser transmitter lens barrel, and lasing light emitter and convex lens are installed in the Laser emission lens barrel;
Wedge is regulated parts and is comprised stepper motor one, stepper motor two, wedge gear one, wedge gear two, one-level code-disc one, one-level code-disc two, secondary code-disc I and II code-disc two, one-level optocoupler one, one-level optocoupler two, secondary optocoupler I and II optocoupler two, wedge eyeglass one, wedge eyeglass two, wedge gear pedestal, pinion wheel one and pinion wheel two; Wedge eyeglass one is glued at wedge gear one central part, and wedge gear one is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; On wedge gear one end face one-level code-disc one is installed, rotates start bit to confirm wedge through one-level optocoupler one feedback signal; Pinion wheel one and one engagement of wedge gear; Simultaneously with stepper motor I and II code-disc one coaxial being assembled together; Stepper motor one drives pinion wheel one rotation, drives the wedge gear for the moment simultaneously; Secondary code-disc one is through secondary optocoupler one feedback signal, with the concrete angle of record wedge eyeglass one rotation;
Wedge eyeglass two is glued at wedge gear two central parts, and wedge gear two is installed in the wedge gear pedestal, can rotate around the center, limits its axial location by wedge; On the wedge gear biend one-level code-disc two is installed, rotates start bit to confirm wedge through one-level optocoupler two feedback signals; Pinion wheel two and two engagements of wedge gear; Simultaneously with stepper motor two, secondary code-disc two coaxial being assembled together; Stepper motor two drives pinion wheels two rotations, when driving wedge gear two simultaneously; Pass through secondary optocoupler two feedback signals on the secondary code-disc, with the concrete angle of record wedge eyeglass two rotations;
Control circuit comprises serial communication circuit, governor circuit, 4 road feedback circuits, modulation circuit, Electric Machine Control driving circuit; Governor circuit is connected with serial communication circuit, 4 road feedback circuits, modulation circuit; Modulation circuit is connected with the Electric Machine Control driving circuit; Be used for the transmission and the feedback of signal, serial communication circuit is connected with governor circuit, and 4 road feedback circuits feed back to governor circuit; Governor circuit is exported to modulation circuit, and modulation circuit is exported to the Electric Machine Control driving circuit; 4 road feedback circuits link to each other with one-level optocoupler one, one-level optocoupler two, two aurora coupling I and II optocouplers two respectively, through accepting the optocoupler signal, prevent that the motor adjusting from going beyond the scope; Modulation circuit links to each other with the Electric Machine Control driving circuit, and the Electric Machine Control driving circuit links to each other with stepper motor one, stepper motor two respectively, realizes that through PWM motor slowly quickens, at the uniform velocity controls, slowing down stops.
2. double-optical-wedge laser beam angle automatic controller according to claim 1 is characterized in that said lasing light emitter adopts semiconductor laser.
3. double-optical-wedge laser beam angle automatic controller according to claim 1 is characterized in that said wedge eyeglass one is 2 ° with wedge eyeglass two angles of wedge.
4. double-optical-wedge laser beam angle automatic controller according to claim 1 is characterized in that said modulation circuit adopts the SP3232E receiver.
5. double-optical-wedge laser beam angle automatic controller according to claim 1 is characterized in that said governor circuit selects for use the Cortex-M3 processor as kernel control chip.
6. double-optical-wedge laser beam angle automatic controller according to claim 1 is characterized in that the Electric Machine Control driving circuit adopts the L298N chip for driving.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102077298A CN101881975B (en) | 2010-06-24 | 2010-06-24 | Double-optical-wedge laser beam angle automatic controller |
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| CN2010102077298A CN101881975B (en) | 2010-06-24 | 2010-06-24 | Double-optical-wedge laser beam angle automatic controller |
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| CN101881975B true CN101881975B (en) | 2012-03-21 |
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| CN102928978B (en) * | 2012-11-02 | 2014-10-15 | 北京航空航天大学 | Light beam scanning mechanism based on rotation double wedge lenses |
| CN106556934A (en) * | 2015-11-25 | 2017-04-05 | 北京索斯克科技开发有限公司 | A kind of laser alignment structure |
| CN109813529A (en) * | 2017-11-21 | 2019-05-28 | 北京振兴计量测试研究所 | Optical parameter detection device for laser photoelectricity detection system |
| CN108469220A (en) * | 2018-04-25 | 2018-08-31 | 南京理工大学 | The method that direction receiver detecting system precision improves |
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| CN1256609C (en) * | 2003-11-07 | 2006-05-17 | 中国科学院上海光学精密机械研究所 | Precision rotating double prism light beam scanner and control method thereof |
| US7119972B2 (en) * | 2004-06-24 | 2006-10-10 | Agilent Technologies, Inc. | Apparatus and method for the manipulation of a laser beam in reflection |
| CN100340899C (en) * | 2005-06-08 | 2007-10-03 | 中国科学院上海光学精密机械研究所 | double-optical-wedge beam deflection mechanical device |
| CN101231388A (en) * | 2008-02-26 | 2008-07-30 | 中国科学院长春光学精密机械与物理研究所 | Method for eliminating color difference of twisting type liquid crystal wave-front corrector |
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